1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Generic System Framebuffers on x86
* Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
*
* EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com>
*/
/*
* EFI Quirks
* Several EFI systems do not correctly advertise their boot framebuffers.
* Hence, we use this static table of known broken machines and fix up the
* information so framebuffer drivers can load corectly.
*/
#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/efi.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/screen_info.h>
#include <video/vga.h>
#include <asm/efi.h>
#include <asm/sysfb.h>
enum {
OVERRIDE_NONE = 0x0,
OVERRIDE_BASE = 0x1,
OVERRIDE_STRIDE = 0x2,
OVERRIDE_HEIGHT = 0x4,
OVERRIDE_WIDTH = 0x8,
};
struct efifb_dmi_info efifb_dmi_list[] = {
[M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
[M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
[M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
[M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
[M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
[M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
[M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
[M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
[M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
[M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
[M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
[M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
[M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
[M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
[M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
/* 11" Macbook Air 3,1 passes the wrong stride */
[M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
[M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
[M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
[M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
[M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
[M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
[M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
[M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
[M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
[M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
[M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
[M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
[M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
[M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
};
void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
{
int i;
for (i = 0; i < M_UNKNOWN; i++) {
if (efifb_dmi_list[i].base != 0 &&
!strcmp(opt, efifb_dmi_list[i].optname)) {
si->lfb_base = efifb_dmi_list[i].base;
si->lfb_linelength = efifb_dmi_list[i].stride;
si->lfb_width = efifb_dmi_list[i].width;
si->lfb_height = efifb_dmi_list[i].height;
}
}
}
#define choose_value(dmivalue, fwvalue, field, flags) ({ \
typeof(fwvalue) _ret_ = fwvalue; \
if ((flags) & (field)) \
_ret_ = dmivalue; \
else if ((fwvalue) == 0) \
_ret_ = dmivalue; \
_ret_; \
})
static int __init efifb_set_system(const struct dmi_system_id *id)
{
struct efifb_dmi_info *info = id->driver_data;
if (info->base == 0 && info->height == 0 && info->width == 0 &&
info->stride == 0)
return 0;
/* Trust the bootloader over the DMI tables */
if (screen_info.lfb_base == 0) {
#if defined(CONFIG_PCI)
struct pci_dev *dev = NULL;
int found_bar = 0;
#endif
if (info->base) {
screen_info.lfb_base = choose_value(info->base,
screen_info.lfb_base, OVERRIDE_BASE,
info->flags);
#if defined(CONFIG_PCI)
/* make sure that the address in the table is actually
* on a VGA device's PCI BAR */
for_each_pci_dev(dev) {
int i;
if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
continue;
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
resource_size_t start, end;
unsigned long flags;
flags = pci_resource_flags(dev, i);
if (!(flags & IORESOURCE_MEM))
continue;
if (flags & IORESOURCE_UNSET)
continue;
if (pci_resource_len(dev, i) == 0)
continue;
start = pci_resource_start(dev, i);
end = pci_resource_end(dev, i);
if (screen_info.lfb_base >= start &&
screen_info.lfb_base < end) {
found_bar = 1;
break;
}
}
}
if (!found_bar)
screen_info.lfb_base = 0;
#endif
}
}
if (screen_info.lfb_base) {
screen_info.lfb_linelength = choose_value(info->stride,
screen_info.lfb_linelength, OVERRIDE_STRIDE,
info->flags);
screen_info.lfb_width = choose_value(info->width,
screen_info.lfb_width, OVERRIDE_WIDTH,
info->flags);
screen_info.lfb_height = choose_value(info->height,
screen_info.lfb_height, OVERRIDE_HEIGHT,
info->flags);
if (screen_info.orig_video_isVGA == 0)
screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
} else {
screen_info.lfb_linelength = 0;
screen_info.lfb_width = 0;
screen_info.lfb_height = 0;
screen_info.orig_video_isVGA = 0;
return 0;
}
printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
"(%dx%d, stride %d)\n", id->ident,
screen_info.lfb_base, screen_info.lfb_width,
screen_info.lfb_height, screen_info.lfb_linelength);
return 1;
}
#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
{ \
efifb_set_system, \
name, \
{ \
DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
DMI_MATCH(DMI_PRODUCT_NAME, name) \
}, \
&efifb_dmi_list[enumid] \
}
static const struct dmi_system_id efifb_dmi_system_table[] __initconst = {
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
/* At least one of these two will be right; maybe both? */
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
/* At least one of these two will be right; maybe both? */
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
/* At least one of these two will be right; maybe both? */
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
/* At least one of these two will be right; maybe both? */
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
{},
};
__init void sysfb_apply_efi_quirks(void)
{
if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
!(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
dmi_check_system(efifb_dmi_system_table);
}
|
